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Ubuntu 22.04 LTS: Linux Kernel Critical Security Vulnerability USN-7889-5

ubuntu
Calendar Grey December 5, 2025
Dist Ubuntu Esm H88
Several security issues in the Ubuntu Linux kernel updated; critical patch is necessary for system integrity and protection.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-ibm-6.8: Linux kernel for IBM cloud systems

Details:

Several security issues were discovered in the Linux kernel.

An attacker could possibly use these to compromise the system.

This update corrects flaws in the following subsystems:

- Media drivers;

- Network drivers;

- Netfilter;

- TLS protocol;

(CVE-2025-21729, CVE-2025-38227, CVE-2025-38616, CVE-2025-38678)

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise Linux kernel network driver

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
  linux-image-6.8.0-1041-ibm      6.8.0-1041.41~22.04.1
  linux-image-ibm-6.8             6.8.0-1041.41~22.04.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

https://ubuntu.com/security/notices/USN-7889-5

https://ubuntu.com/security/notices/USN-7889-4

https://ubuntu.com/security/notices/USN-7889-3

https://ubuntu.com/security/notices/USN-7889-2

https://ubuntu.com/security/notices/USN-7889-1

CVE-2025-21729, CVE-2025-38227, CVE-2025-38616, CVE-2025-38678

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7889-5

Topics%20covered

Topics Covered

security advisory critical Ubuntu system compromise Linux kernel network driver

Package Information

https://launchpad.net/ubuntu/+source/linux-ibm-6.8/6.8.0-1041.41~22.04.1

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